package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * @author 梦龙
 * @date 2023/11/28 14:48
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品,{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        if (redisTemplate.opsForValue().get(key) != null) {
            cleanCache(key);
        }

        return Result.success();
    }

    /**
     * @description: 菜品分页查询
     * @return: com.sky.result.Result<com.sky.result.PageResult>
     * @time: 2023/11/28 20:43
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * @description:菜品批量删除
     * @return: com.sky.result.Result
     * @time: 2023/11/29 9:44
     */
    @DeleteMapping
    @ApiOperation("菜品的批量删除")
    public Result delete(@RequestParam List<Long> ids) {
        log.info("菜品的批量删除:{}", ids);
        dishService.deleteBatch(ids);

        //将所有菜品缓存数据都清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * @description:根据id查询菜品
     * @return: com.sky.result.Result<com.sky.vo.DishVO>
     * @author: 梦龙
     * @time: 2023/11/29 15:29
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品");
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("修改菜品");
        dishService.updateWithFlavor(dishDTO);

        //将所有菜品缓存数据都清理掉，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(@RequestParam Long categoryId) {
        log.info("根据分类id查询菜品");
        List<DishVO> dishVOList = dishService.list(categoryId);
        return Result.success(dishVOList);
    }

    @PostMapping("/status/{status}")
    @ApiOperation("起售停售菜品")
    public Result startOrStopDish(@PathVariable Integer status, Long id) {
        log.info("起售停售菜品");
        dishService.startOrStopDish(status, id);
        cleanCache("dish_*");
        return Result.success();
    }

    //统一清理缓存数据，封装在这个方法中，因为只有这个类需要用，所以修饰符使用private
    private void cleanCache(String pattern ){
        //将所有菜品缓存数据都清理掉，所有以dish_开头的key
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

}
